The Chelsea 272GAAJX-B5XD or 272GAAJXB5XD is a 272 Series hot shift power take-off assembly from Parker Chelsea, designed for medium-duty applications including aerial, construction equipment, water trucks, and towing and recovery work. This 6-bolt mount PTO supports intermittent torque up to 300 lb-ft and continuous output power of 56 or more horsepower. The 272 Series consolidates multiple legacy Chelsea PTO lines into a single versatile platform with nine speed ratios and eighteen shift options. Shift is pneumatic or hydraulic, with an integral air control valve included. Rotatable flanges and direct mount or driveshaft output configurations make this series adaptable across a wide range of equipment. Call us to confirm proper fit for your application.
Features
Chelsea 272 Series 6-bolt hot shift PTO assembly
Intermittent torque rating: 201 to 300 lb-ft (401 to 500 Nm)
Continuous output: 56+ HP (41 to 50 kW)
Pneumatic or hydraulic shift with integral air control valve
Rotatable flanges; direct mount and driveshaft output options available
Smart-Start option supports high-torque start-up conditions
Tech Specs
- Mounting Type: 6-Bolt
- Shift Type: Pneumatic or Hydraulic
- Intermittent Torque: 201 to 300 lb-ft (401 to 500 Nm)
- Output Power: 56+ HP (41 to 50 kW)
- Output Shaft Type: Round Shaft (1" - 1/4" Key) or Round Shaft (1-1/4" - 5/16" Key)
- Speed Ratios Available: 9
- Shift Options Available: 18
- Lubricant Codes: X = No Pressure Lube, P = Pressure Lube, W = Wet Spline
Additional Information
The Chelsea 272 Series consolidates the legacy 230, 231, 236, 238, 270, and 271 Chelsea PTO lines into one medium-duty hot shift platform. Markets served include aerial, construction equipment, towing and recovery, water trucks, defense, material handling, and water drilling. The Wet-Spline option extends PTO and pump shaft service life on direct-mount configurations, while the Smart-Start option is suited to high-torque start-up conditions on driveshaft output configurations. Part number 272GAAJX-B5XD is also referenced as SP272GAAJX-B5XD in some catalog systems.Parts manual and diagrams: Chelsea 272 Series PTO parts list with prices
